Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01ef69676d235ff…

MALICIOUS

PDF

77.0 KB Created: 2020-12-17 18:33:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 8a54ff4e97cbd9ae85655b3dd6200b44 SHA-1: 606962a794da428d3a1d6b9c04ee5dcb3020e4cd SHA-256: c01ef69676d235ffb6c1c1c42fa7bf994d7419bf81f3afccb16ca1079e9108db
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely for credential harvesting or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a 'restaurant guide', aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://trafffe.ru/123?utm_term=macon+restaurant+guide PDF link annotation
    • https://naxedomabaxa.weebly.com/uploads/1/3/1/6/131606472/kifegologoteve_tumuzibidobum_wofofe_farijenujole.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462368/normal_5fa9571a434e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475859/normal_5fda79e094662.pdfIn PDF document text
    • https://zosupexaduj.weebly.com/uploads/1/3/0/7/130738593/febelo.pdfIn PDF document text
    • https://begumilipanup.weebly.com/uploads/1/3/4/6/134617951/folopobagakiwo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc51cd00b6b03258f50a19d/t/5fd7334f034a586a4f5dea09/1607938901761/interview_questions_and_answers_for_administrator.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc294961452f90b7fefeff3/t/5fcbf2f433187724c4daf53a/1607201527865/84129425451.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5515e973-fc00-459a-84c4-8e574a9f16a1/jiwisugabinopowaj.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f27ea13a450babf44921/t/5fc1325218e72e5fdb028dbb/1606496850751/vusurojifomamif.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/ximirofalenanolatix.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/vsepr_chart.pdfIn PDF document text
    • https://s3.amazonaws.com/vovopafubipu/wivipipekujixesokelukax.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF192 5080 bytes
SHA-256: fc781c2f94318f88b98a9ffc312cd2772a71dc25a218d5d3f6b7b26f929756cb
font_01_sfnt_off000102f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102F1 10828 bytes
SHA-256: db7e25f0ed31632b73d640939ab2e637784792db6af2d61ec4a395726110fd87